@mixin scrollBar {
  ::-webkit-scrollbar-track-piece {
    background-color: transparent;
  }
  ::-webkit-scrollbar {
    width: 7px;
    height: 7px;
    background-color: transparent;
  }
  ::-webkit-scrollbar-thumb {
    border-radius: 5px;
    background-color: hsla(220, 4%, 58%, .3);
  }
}
